CN100510031C - Biological-degradable lubricating grease - Google Patents
Biological-degradable lubricating grease Download PDFInfo
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- CN100510031C CN100510031C CNB200510068162XA CN200510068162A CN100510031C CN 100510031 C CN100510031 C CN 100510031C CN B200510068162X A CNB200510068162X A CN B200510068162XA CN 200510068162 A CN200510068162 A CN 200510068162A CN 100510031 C CN100510031 C CN 100510031C
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- lubricating grease
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- described biodegradable
- biodegradable lubricating
- bismuth
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Abstract
This invention is about a kind of biological degrading grease lubricant, the following components are contained, basing on the whole weight of the grease lubricant: (1) the vegetable oil, the proportion of which is 50-92%,is used as base oil. (2) The lithium and calcium aliphatic mixed soap the proportion of which is 5-40%, is used as thickening agent.(3) The bismuth dithiocarbamate amide or combination of it with bismuth naphthenate is used as extreme pressure agent.(4) The proportion of antioxidant is 0.5-3%.(5) the proportion of rust-preventing agent is 0.2-1%. The biological degrading grease lubricant of this invention has very high extreme pressure property,mechanical stability and environmental protection property.
Description
Technical field
The invention belongs to lubricating grease, exactly is biodegradable Lubricating Grease.
Background technology
Biodegradable Lubricating Grease mainly be with vegetables oil, ester class wet goods can fast degraded biologically lubricating oil be the lubricating grease of base oil preparation, biological degradation rate can reach more than 70%, and is highly beneficial to environment protection.The viscosifying agent of biodegradable Lubricating Grease mainly is the metal soap-type gelling agent, comprises lipid acid lithium soap, lipid acid calcium soap, fatty acid sodium soap or the like.Because extreme-pressure additive is phosphorous mostly, plumbous, is unfavorable for environmental protection, so shortage has the biodegradable Lubricating Grease of extreme pressure property on the market, can not satisfy the requirement for the lubricating condition of extreme pressure and environmental protection.
US6429175 discloses a kind of grease composition, base oil wherein is a vegetables oil, viscosifying agent is based on wilkinite, it can also be lithium soap, selected bismuth carboxylate salt is sebacic acid bismuth, 2-thylhexoic acid bismuth, naphthenic acid bismuth or its mixture, also can add additives such as lime carbonate, tetrafluoroethylene.This lubricating grease has high extreme pressure property, the good water resisting property and the feature of environmental protection.
Summary of the invention
The invention provides a kind of new biodegradable Lubricating Grease with extreme pressure property, this lubricating grease also has good adhesivity and mechanical stability.
Biodegradable Lubricating Grease provided by the invention is a benchmark with the lubricating grease gross weight, comprises following composition:
(1) 50～92 heavy %, the vegetables oil of preferred 75～90 heavy % is made base oil;
(2) 5～40 heavy %, the fatty acid lithium calcium mixing soap of preferred 8～15 heavy % is made viscosifying agent;
(3) 1～10 heavy %, the mixture of the amino bismuth salt of preferred 3～5 heavy % dithio or amino bismuth salt of dithio and naphthenic acid bismuth is done extreme pressure agent;
(4) 0.5～3 heavy %, the oxidation inhibitor of preferred 0.8～2 heavy %;
(5) 0.2～1 heavy %, the metal antirusting agent of preferred 0.3～0.8 heavy %.
Described base oil is a vegetables oil, comprises rape seed oil, Viscotrol C, soya-bean oil, peanut oil, coconut wet goods.100 ℃ of viscosity are 5～40mm
2/ s is preferably 6～12mm
2/ s.
Said fatty acid lithium calcium mixing soap is selected from C
10～C
20Fatty acid lithium calcium mixing soap, wherein the weight ratio scope of lithium-calcium soap is 1～10:1, preferred 2～8:1.
The amino bismuth salt of said dithio, preferred dialkyldithiocarbamacompositions bismuth.The amino bismuth salt of dithio can use separately, also can mix use with the naphthenic acid bismuth, and the weight ratio of the two is 4:1～1:3, preferred 2:1～1:2.
Said oxidation inhibitor can be di-iso-octyldiphenylamine or alkylated diphenylamine.
Said metal antirusting agent can be zinc naphthenate or benzotriazole.
Lubricating grease provided by the invention can prepare in accordance with the following methods: at first, in water with lipid acid and lithium hydroxide, calcium hydroxide reaction, dry then, be prepared into the fatty acid lithium calcium soap, the fatty acid lithium calcium soap put in a part of base oil heat, up to the fusing of fatty acid lithium calcium soap, add quenching oil and cool to room temperature, grinding gets final product.
The biodegradable Lubricating Grease of the present invention's preparation has good extreme pressure property, mechanical stability and the feature of environmental protection.Be applicable to the lubricant housings that environmental requirement is high, as railway, food machinery, livestock industry, sports equipment etc.
Embodiment
Embodiment 1
Preparation 200g lubricating grease, multiviscosisty dosage 10 heavy %, wherein 12 hydroxy lithium stearates 9 weigh %, 12 oxystearic acid calcium, 1 heavy %.Take by weighing 180g rape seed oil (100 ℃ of viscosity 8.85mm
2/ s), wherein 1/3 make quenching oil.To mix soap and put into end oil heating up to the complete fusion of soap, keep adding quenching oil behind 2～5min, treat that temperature drops to adding 3 heavy % dialkyldithiocarbamacompositions bismuth extreme pressure agents below 70 ℃ and 1 heavy % di-iso-octyldiphenylamine oxidation inhibitor, 0.5 weighs % benzotriazole rust-preventive agent, be cooled to grinding at room temperature twice.Analytical results sees Table 1.
Embodiment 2
Preparation 200g lubricating grease, multiviscosisty dosage 12 heavy %, wherein lithium stearate 9.6 weighs %, calcium stearate 2.4 heavy %.Take by weighing 176g Viscotrol C (100 ℃ of viscosity 9mm
2/ s), wherein 1/3 make quenching oil.To mix soap and put into end oil heating up to the complete fusion of soap, keep adding quenching oil behind 2～5min, treat that temperature drops to adding 1 heavy % naphthenic acid bismuth below 70 ℃ and 2 heavy % dialkyldithiocarbamacompositions bismuth extreme pressure agents and 1 heavy % alkylated diphenylamine oxidation inhibitor, 0.7 and weighs % benzotriazole rust-preventive agent, be cooled to grinding at room temperature twice.Analytical results sees Table 1.
Embodiment 3
Preparation 200g lubricating grease, multiviscosisty dosage 15 heavy %, 12 hydroxy lithium stearates, 10.5 heavy %, 12 oxystearic acid calcium, 4.5 heavy %.Take by weighing 182g soya-bean oil (100 ℃ of viscosity 7.5mm
2/ s), wherein 1/3 make quenching oil.To mix soap and put into end oil heating up to the complete fusion of soap, keep adding quenching oil behind 2～5min, treat that temperature drops to adding 2 heavy % naphthenic acid bismuths below 70 ℃ and 1 heavy % dialkyldithiocarbamacompositions bismuth extreme pressure agent and 1 heavy % alkylated diphenylamine oxidation inhibitor, 0.5 and weighs % benzotriazole rust-preventive agent, be cooled to grinding at room temperature twice.Analytical results sees Table 1.
Comparative Examples 1
Preparation 200g lubricating grease, viscosifying agent 12 hydroxy lithium stearates 9 heavy %.Take by weighing 182g rape seed oil (100 ℃ of viscosity 8.8mm
2/ s), wherein 1/3 make quenching oil.To mix soap and put into end oil heating up to the complete fusion of soap, keep adding quenching oil behind 2～5min, treat that temperature drops to adding 3 heavy % naphthenic acid bismuths below 70 ℃ and 1 heavy % alkylated diphenylamine oxidation inhibitor, 0.5 weighs % benzotriazole rust-preventive agent, be cooled to grinding at room temperature twice.Analytical results sees Table 1.
Comparative Examples 2
Preparation 200g lubricating grease, viscosifying agent calcium stearate 10 heavy %.Take by weighing 180g soya-bean oil (100 ℃ of viscosity 7.5mm
2/ s), wherein 1/3 make quenching oil.To mix soap and put into end oil heating up to the complete fusion of soap, keep adding quenching oil behind 2～5min, treat that temperature drops to adding 3 heavy % naphthenic acid bismuths below 70 ℃ and 1 heavy % di-iso-octyldiphenylamine oxidation inhibitor, 0.5 weighs % benzotriazole rust-preventive agent, be cooled to grinding at room temperature twice.Analytical results sees Table 1.
Table 1 analytical results
| Dropping point (℃) | P B(kg) | P D(kg) | Corrosion | Cut off velocity of variation % 100,000 times | |
| Embodiment 1 | 183 | 95 | 400 | Qualified | 8 |
| Embodiment 2 | 188 | 85 | 400 | Qualified | 7 |
| Embodiment 3 | 178 | 55 | 315 | Qualified | 8 |
| The comparative example 1 | 182 | 55 | 200 | Qualified | 18 |
| The comparative example 2 | 100 | 65 | 215 | Qualified | 9 |
By table 1 analytical results as can be seen, produced the obvious synergistic effect between each component of lubricating grease provided by the invention, be in particular in that this lubricating grease has high dropping point and extraordinary mechanical stability and extreme pressure property, over-all properties is significantly better than the lubricating grease of Comparative Examples 1 and 2 preparations.
Claims (11)
1. a biodegradable Lubricating Grease is a benchmark with the lubricating grease gross weight, comprises following composition:
(1) base oil is the vegetables oil of 50～92 heavy %;
(2) viscosifying agent is the fatty acid lithium calcium mixing soap of 5～40 heavy %, and wherein the weight ratio of lithium-calcium soap is 1～10: 1;
(3) extreme pressure agent is the mixture of the amino bismuth salt of 1～10 heavy % dithio or amino bismuth salt of dithio and naphthenic acid bismuth;
The oxidation inhibitor of (4) 0.5～3 heavy %;
The metal antirusting agent of (5) 0.2～1 heavy %.
2. according to the described biodegradable Lubricating Grease of claim 1, with the lubricating grease gross weight is benchmark, it is characterized in that: base oil content is 75～90 heavy %, viscosifying agent content is 8～15 heavy %, extreme pressure agent content 3～5 heavy %, antioxidant content 0.8～2 heavy %'s, metal rust preventing agent content 0.3～0.8 heavy %.
3. according to the described biodegradable Lubricating Grease of claim 1, it is characterized in that 100 ℃ of viscosity of said vegetables oil are 5～40mm
2/ s.
4. according to the described biodegradable Lubricating Grease of claim 3, it is characterized in that 100 ℃ of viscosity of said vegetables oil are 6～12mm
2/ s.
5. according to the described biodegradable Lubricating Grease of claim 1, it is characterized in that said fatty acid lithium calcium mixing soap is C
10～C
20Fatty acid lithium calcium mixing soap.
6. according to the described biodegradable Lubricating Grease of claim 1, it is characterized in that the weight ratio of lithium-calcium soap is 2～8:1.
7. according to the described biodegradable Lubricating Grease of claim 1, it is characterized in that the amino bismuth salt of said dithio is the dialkyldithiocarbamacompositions bismuth.
8. according to the described biodegradable Lubricating Grease of claim 1, it is characterized in that the amino bismuth salt of dithio mixes use with the naphthenic acid bismuth, the weight ratio of the two is 4:1～1:3.
9. according to the described biodegradable Lubricating Grease of claim 8, it is characterized in that the weight ratio of amino bismuth salt of dithio and naphthenic acid bismuth is 2:1～1:2.
10. according to the described biodegradable Lubricating Grease of claim 1, it is characterized in that said oxidation inhibitor is di-iso-octyldiphenylamine or alkylated diphenylamine.
11., it is characterized in that said metal antirusting agent is zinc naphthenate or benzotriazole according to the described biodegradable Lubricating Grease of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510068162XA CN100510031C (en) | 2005-04-29 | 2005-04-29 | Biological-degradable lubricating grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510068162XA CN100510031C (en) | 2005-04-29 | 2005-04-29 | Biological-degradable lubricating grease |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854269A CN1854269A (en) | 2006-11-01 |
| CN100510031C true CN100510031C (en) | 2009-07-08 |
Family
ID=37194723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510068162XA Active CN100510031C (en) | 2005-04-29 | 2005-04-29 | Biological-degradable lubricating grease |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100510031C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265999B (en) * | 2013-05-19 | 2015-03-11 | 广西大学 | Biodegradable lubricating grease |
| CN115772435B (en) * | 2022-11-22 | 2024-02-27 | 中国石油化工股份有限公司 | Composite calcium type automobile hub bearing lubricating grease composition and preparation method thereof |
-
2005
- 2005-04-29 CN CNB200510068162XA patent/CN100510031C/en active Active
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| Publication number | Publication date |
|---|---|
| CN1854269A (en) | 2006-11-01 |
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